Enterprise AI estimating, independently verified.

Cinderbid turns plan sets into priced, defensible bids for enterprise general contractors and owners — with calibrated accuracy metrics, a full audit trail on every number, and deployment on your own infrastructure.

>> Explore the interactive tour
SYSTEM CALIBRATION: 83% HISTORICAL ACCURACY (17.3% Median MAPE) [ACTIVE]
// Capabilities

Your entire pre-construction pipeline, instrumented

From ingest to sealed bid, every stage runs under verification gates — so estimating stops being a bottleneck and starts being an audited system of record.

Scope & Takeoff

Layout-aware vector PDF takeoff runs locally in the browser via WebGL — zero-leakage by design. Plans, specs, and drawings are parsed into structured scope and quantities without leaving your environment.

Cost Estimation

Monte Carlo simulation over regional cost data produces priced estimates with explicit uncertainty bands, margin floors, and volatility alerts — numbers your review board can interrogate.

Bid Verification

Independent verification re-checks every quantity and price before release. Gated bid revisions mean no estimate ships without passing its checks, and every override is recorded.

Prepaid Ledger Billing

Usage runs against a prepaid Cinderblock ledger with idempotent transactions and a locked retainer reserve — predictable spend, no surprise invoices, every charge reconciled.

// Verification & Audit Trail

Calibrated accuracy, not marketing math

We publish our calibration instead of hiding it. Cinderbid's historical accuracy is measured against real bid outcomes with leave-one-out validation, and every estimate carries a trace: inputs, model passes, verification checks, and revision history — exportable for compliance review.

83%
Historical accuracy (calibrated)
17.3%
Median MAPE across historical bids
100 CB
Retainer reserve locked per ledger
FULL
Per-bid audit trail, end to end
// Procurement Integrations

Wired into public procurement

Pull opportunities and compliance data straight from the sources your capture team already watches — on our managed network or with your own API keys.

SAM.gov

Federal opportunity ingest via the SAM.gov API. Bring your own key or route through the managed Cinderbid network.

State DOT Portals

State Department of Transportation letting portals feed directly into scope and pricing — configured per state, per portal key.

Bring Your Own Keys

Every integration supports customer-supplied credentials, so data access stays under your procurement and security policies.

// Enterprise Plan

Enterprise GTM

3,000 CB

The Enterprise GTM plan is provisioned per organization on the prepaid Cinderblock ledger, with margin-floor enforcement built into every priced bid.

Book a demo
  • Seats for your estimating team, managed per organization
  • Single sign-on (SSO) through your identity provider
  • Deployment on your infrastructure — your data stays in your environment
  • Prepaid Cinderblock ledger with locked retainer reserve and idempotent billing
  • SAM.gov and State DOT integrations with customer-supplied API keys
  • Full verification audit trail on every bid, exportable for compliance
  • Multi-language billing receipts (EN / ES / AR / DE / FR)
// Straight Answers

What enterprise buyers ask first

Where does our data live?

Takeoff runs locally and enterprise deployments run on your infrastructure. Your drawings and pricing never need to leave your environment.

How do you measure accuracy?

Against historical bid outcomes: 83% historical accuracy at a 17.3% median MAPE, computed with leave-one-out validation. We report the calibration as measured — no inflated claims.

Can our auditors review an estimate?

Yes. Every bid carries a complete trace — inputs, verification checks, revisions, and ledger charges — designed to be handed to a reviewer, not reconstructed after the fact.

How do we get started?

Email sales@cinderbid.com to book a demo, or walk the interactive product tour first.